Portable furnace



(No Model.)

B. REACH. PORTABLE FURNAOE.

No. 508,494. Patented Aug. 15, 1893.

UNTTED STATES PATENT OFFICE.

ROBERT REACH, OF PHILADELPHIA, PENNSYLVANIA.

PORTABLE FURNACE.

SPECIFICATION forming part of Letters Patent No. 503,494, dated August 15, 1893.

Application filed October 29, 1891. Renewed June 26, 1893- Seria1No.4'78,898- (No model.)

To all whom it may concern.-

Be it known that I, ROBERT REACH, a citizen of the United States of America, residing at Philadelphia, Pennsylvania, have invented certain new and useful Improvements in Portable Furnaces, of which the following is a specification.

My invention relates to portable furnaces adapted to burn gasoline and used largely by plumbers and in other trades where a portable furnace is necessary or desirable.

The invention includes the construction of retainer or receptacle and the details connected therewith, and also the support or carrier for the burner proper, and the details relating thereto.

My object is to secure a simple form of 0011- tainer and burner with a fluid supply leading to the burner located wholly within the container, thus providing absolutely against all danger of leakage which is a very important matter.

Another object is to provide a simple form of burner and vaporizer in connection with the fluid supply pipe. In connection with the carrier or holder in which the container or receptacle is removably supported I provide a melting pot secured to the holder, and so constructed as to secure the maximum amount of heat from the burner.

In the accompanying drawing, the figure represents the burner in section.

In the drawing I have shown the receptacle or container for the gasoline or like fluid as made of sheet metal of suitable form and size. This is provided with a suitable filling opening covered by a cap as at a, a valve 19, extending into an opening passing through the top of the container and controlling the fluid supply to the burner, and a second valve which controls the air supply for putting the con tents of the container under pressure. This valve 0, fits into a pipe 01, which extends through the top of the container and has a branch upon the outside which is in connection with a bulb or air pump by means of a flexible pipe. In the drawing the bulb is shown at c, and the flexible connection at f. The burner is supported centrally or approximately so at the top of the container, being screwed upon the end of a nipple projecting above the top of the container, and extends within the same as shown in the sectional view. A tube connects with the stem as at g, and this tube is continued by means of an extension h, extending to near the bottom of the container. At the junction of the two tubes the valve 1), is located, and thus the flow of the fluid to the burner may be regulated at will. The fluid contents is placed under pressure by means of the bulb or other air forcing device, and thus the gasoline is forced up the pipe 9, and into the pipe leading to the burner from the pipe 71., when the valve 1), is open. The burner is of very simple form and consists of a drip cup secured upon the stem t, and above the drip cup is secured a disk which is provided with two nipples k, 76, extending from its upper surface, and the free ends of a tube bent into U shape are secured to these nipples. The drip cup is marked Z, and the U shaped tube It. The opening in the stem 1', is continued up through the disk and nipple upon one side, where it connects with the opening through the U shaped tube, and then an opening is bored or otherwise formed radially of the disk in line with the limbs of the U shaped pipe to an opening in the center of the disk and between the nipples. This is the burner outlet and after the opening is bored through the disk from the periphery it is plugged up on the periphery. Thus it will be seen that after the flame has been started intense heat will be applied to the U shaped tube and the oil will be vaporized and issue from the burner opening in the form of vapor. A perforated inclosing cap fits over the burner to confine the flame, thus adding to the intensity of the heat, and preventing waste.

By arranging the fluid supply pipes entirely within the container it will be seen that they are all protected and if there is any leakage it simply drops into the main body of the liquid and there is no waste. This arrangement is a very simple one but exceedingly effective. I have provided handles a, by which the container may be manipulated, and used to apply heat directly to any surface where this is necessary.

It is usual to provide a stand or carrier for these furnaces, and I have provided one in in their upper ends to provide a connectionforahandle p. Thesestandardsalsosupport, by means of lugs 5 cast with them a metal pot, held securely to the standards by means of screws. This pot is used as a means for melting or heating,and inorder to secure the very best results and a maximum amount of the heat of the furnace I have provided the pot with an outer inclosing shell, preferablymade in one piece with the pot as shown. This shell is marked 3. The pot proper is; within the same, and there is a space between it and the wall of the shell so that the heat of the burner is applied directly to the 'bottom of the pot, while the space'around it receives and confines the heat,'and thus adds greatly to the heating capacity of the pot. Openings are formed as at t, in the upper part, of the pot and shell to allow for the escape of smoke and some of the heat. shell are provided with a handle also as shown.

Another advantage arises from having the connections entirely within the container in' addition to preventing leakage in that the possibility of an accident or explosion'is re duced to a minimum.

I claim as my invention 1. In combination in a portable furnace, a container or receptacle, a burner arranged centrally of the container a fluid supply consisting of the pipes g and h entirely within The pot and the receptacle and a Valve 1? at one side of the receptacle for controlling the flow of the fluid,

the said pipe 9 extending from the central connection with the burner inside the receptacle to one side of the same where it joins the pipe 72 and valve within the receptacle; substantially as described.

2. In combination the receptacle having a central burner, the carrier frame for holding the receptacle removably consisting of a flanged base with standards extending upwardly therefrom above the receptacle the melting pot arranged centrally over the burner and consisting of the depending outer part 8 open at the bottom and connected with the upper part of the standards and the interior part supported from the outerpartwith openings between them, substantially as described.

3. In combination a receptacle having a central burner, the pipe g connected thereto, inside the receptacle, and extending to one side thereof, the pipe hconnected with the pipe g and extending'diagonally to the opposite lowerside of the receptacle and the valve at the junction of the two pipes, substantially as described.

4. In combination, the receptacle having the burner, the base, and the standards, the melting pot consisting of the outer depending shell, and the inner part connected thereto, the said standard having lugs 5, engaging the lower edge of the depending part, andsecured thereto, and having extensions above the lower edge to which the handle is attached, substantially'as described.

In testimony whereof I affiX my signature in presence of two'witnesses.

ROBERT REACH.

Vitnesses:

W. T.GEORGE,'S1., GEO. A. PARKINsoN. 

